Sealing structure and packing element thereof

ABSTRACT

A sealing structure includes a first substrate having a first compartment, a second compartment and a first base surface. A first element, disposed between the first and second compartments, a second element and a third element, moves between a first initial position and a first predetermined position. The first element has a first acting surface and the second element has a second acting surface. The third element includes a body, a first sectioned part having a first main conjunctive surface, and a second sectioned part having a second main conjunctive surface. When the first element is moved to the first predetermined position, the body is clamped between the first and second acting surfaces, and the first main conjunctive surface contacts the second main conjunctive surface. Thus, the deformed third element pressing against the first base surface separates the first compartment from the second compartment.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a sealing structure, and more particularly to asealing structure and a packing element thereof capable of separatingone compartment from another compartment.

2. Description of the Related Art

In FIG. 1, a sealing structure N comprises a first base C1, a secondbase C2, a pressure plate n1, a backing plate n2, a lip-like seal n3 anda spring n4. The first base C1 has a compartment c11 and an innersidewall c100. The second base C2 has a hole for receiving the firstbase C1. The pressure plate n1 is disposed in the compartment c11 of thefirst base C1. The backing plate n2 is disposed in the compartment c11of the first base C1. The lip-like seal n3 is clamped between thepressure plate n1 and the backing plate n2 to press against the innersidewall c100 of the compartment c11 of the first base C1. The spring n4is disposed between the pressure plate n1 and the bottom of thecompartment c11 of the first base C1. That is, the pressure plate n1,the backing plate n2, the seal n3 and the spring n4 are disposed betweenthe first and second bases C1 and C2, and the seal n3 is extended fromthe pressure plate n1 and the backing plate n2. When the extended partof the seal n3 presses the inner sidewall c100 of the compartment c11 ofthe first base C1, the inner space enclosed by the first and secondbases C1 and C2 can be divided into a first compartment “I” and a secondcompartment “II” via the seal n3.

When the fluid in the first compartment “I” is pressurized, thepressurized fluid in the first compartment “I” forces the pressure platen1, the backing plate n2, the seal n3 and the spring n4 toward thesecond base C2, pressing the backing plate n2 to contact the second baseC2 and pressing the seal n3 to contact the inner sidewall c100 of thecompartment c11 of the first base C1.

When the fluid in the first compartment “I” is further pressurized, thefluid in the first compartment “I” may travel to the second compartment“II” via the clearance between the seal n3 and the inner sidewall c100of the compartment c11, thus, the seal n3 between the first and secondcompartment “I” and “II” is broken.

BRIEF SUMMARY OF THE INVENTION

The invention provides a sealing structure and packing element thereof.An embodiment of a packing element comprises a body, a first sectionedpart and a second sectioned part. The body comprises a first surface, asecond surface, a first end and a second end. The first surface and thesecond surface are parallel. The first sectioned part disposed on thefirst end of the body comprises a first main conjunctive surface and twofirst sub-conjunctive surfaces. The first main conjunctive surface islocated between the two first sub-conjunctive surfaces and is notadjacent to the first and second surfaces of the body, and the two firstsub-conjunctive surfaces are respectively disposed next to the first andsecond surfaces of the body. The second sectioned part disposed on thesecond end of the body comprises a second main conjunctive surfacecorresponding to the first main conjunctive surface and two secondsub-conjunctive surfaces. The second main conjunctive surface is locatedbetween the two second sub-conjunctive surfaces and is not adjacent tothe first and second surfaces of the body, and the two secondsub-conjunctive surfaces are respectively disposed next to the first andsecond surfaces of the body, and the first and second main conjunctivesurfaces are parallel to the first and second surfaces of the body.

The shape of the body can be circular. The body, the first sectionedpart and the second sectioned part can be integrally formed. The bodycan further comprise a conical surface disposed next to the firstsurface, the second surface, the first main conjunctive surface of thefirst sectioned part, and the second main conjunctive surface of thesecond sectioned part. The first main conjunctive surface isperpendicular to the two first sub-conjunctive surfaces, and the secondmain conjunctive surface is perpendicular to the two secondsub-conjunctive surfaces. The packing element can be made of an elasticmaterial. The elastic material can be a reinforced Teflon resin.

Another embodiment of a sealing structure comprises a first substrate, afirst element, a second element and a packing element. The firstsubstrate comprises an inner space and a first base surface. The firstbase surface is a sidewall of the inner space. The first elementcomprising a first acting surface disposed on the inner space movesbetween a first initial position and a first predetermined position. Thesecond element disposed in the inner space of the first substratecomprises a second acting surface. The packing element disposed betweenthe first acting surface of the first element and the second actingsurface of the second element comprises a body, a first sectioned partand a second sectioned part. The body comprises a first surface, asecond surface, a first end and a second end. The first surface and thesecond surface are parallel. The first sectioned part disposed on thefirst end of the body comprises a first main conjunctive surface and twofirst sub-conjunctive surfaces. The first main conjunctive surface islocated between the two first sub-conjunctive surfaces and is notadjacent to the first and second surfaces of the body, and the two firstsub-conjunctive surfaces are respectively disposed next to the first andsecond surfaces of the body. The second sectioned part disposed on thesecond end of the body comprises a second main conjunctive surfacecorresponding to the first main conjunctive surface and two secondsub-conjunctive surfaces. The second main conjunctive surface is locatedbetween the two second sub-conjunctive surfaces and is not adjacent tothe first and second surfaces of the body. The two secondsub-conjunctive surfaces are respectively disposed next to the first andsecond surfaces of the body, and the first and second main conjunctivesurfaces are parallel to the first and second surfaces of the body.

The body is deformedly clamped between the first acting surface of thefirst element and the second acting surface of the second element. Thefirst main conjunctive surface of the first sectioned part contacts thesecond main conjunctive surface of the second sectioned part, pressingthe deformed third element against the first base surface of the firstsubstrate.

The first acting surface of the first element comprises a first conicalsurface and the body of the packing element comprises a second conicalsurface contacting the first conical surface of the first acting surfaceof the first element. The first conical surface of the first actingsurface of the first element and the second conical surface of the bodyof the packing element have the same conical angle. The formed packingelement can have a trapezoidal cross-section. The body of the packingelement can be formed in circular. The packing element can be made of anelastic material. The elastic material can be a reinforced Teflon resin.

The sealing structure can further comprise a second substrate having asecond base surface. The second element contacts the second base surfaceof the second substrate when the first element is moved from the firstinitial position to the first predetermined position. The first mainconjunctive surface of the packing element is perpendicular to the twofirst sub-conjunctive surfaces of the packing element, and the secondmain conjunctive surface is perpendicular to the two secondsub-conjunctive surfaces. The first surface of the packing elementcontacts the first acting surface of the first element, and the secondsurface of the packing element contacts the second acting surface of thesecond element.

The sealing structure can further comprise an elastic member disposedbetween the first substrate and the first element. The elastic membercan be a spring. The sealing structure can be a scroll compressor.

A detailed description is given in the following embodiments withreference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequentdetailed description and examples with references made to theaccompanying drawings, wherein:

FIG. 1 is a schematic view of a conventional sealing structure;

FIG. 2A is an assembled perspective view of an scroll compressor and asealing structure of the invention;

FIG. 2B is an exploded perspective view of the sealing structure of theinvention, wherein the sealing structure comprises a first substrate, asecond substrate, a first element, a second element, a packing elementand an elastic member;

FIG. 3 is a perspective view of the packing element of FIG. 2B;

FIG. 4A is a sectional view of the sealing structure of FIG. 2A alongline a-a, wherein the sealing structure is in a normal status (notpressurized);

FIG. 4B is a sectional view of the sealing structure of FIG. 2A alongline a-a, wherein the sealing structure is in a working status(pressurized); and

FIG. 4C is an enlarged view of region z of FIG. 4A.

DETAILED DESCRIPTION OF THE INVENTION

The following description is of the best-contemplated mode of carryingout the invention. This description is made for the purpose ofillustrating the general principles of the invention and should not betaken in a limiting sense. The scope of the invention is best determinedby reference to the appended claims.

In FIG. 2A and FIG. 2B, the scroll compressor E comprises a main body B0and a sealing structure M disposed in the main body B0. The sealingstructure M comprises a first substrate B1 having a shaft portion b10, asecond substrate B2 having a hole portion b20, a first element 1, asecond element 2, a third element 3 disposed between the first andsecond elements 1 and 2, and an elastic member 4 disposed between thefirst element 1 and the first substrate B1.

FIG. 3 is an enlarged view of the structure of the third element 3 ofFIG. 2B. FIGS. 4A and 4B show the sealing structure M in a normal status(not pressurized) and a working status (pressurized), respectively. Themain body B0 has an inner space connected to a first chamber CR1 and asecond chamber CR2, and the sealing structure M disposed in the mainbody B0 is utilized to separate the first chamber CR1 from the secondchamber CR2. In this embodiment, the sealing structure M can be a scrollcompressor.

In FIGS. 4A and 4B, the first and second substrates B1 and B2 arerespectively connected to the first and second chambers CR1 and CR2. Theelastic member 4, the first element 1, the third element 3 and thesecond element 2 are sequentially disposed between the first and secondsubstrates B1 and B2, thus, the inner space of the main body B0 isseparately divided into two partitions.

The shaft portion b10 of the first substrate B1 comprises an outerdiameter D1, a first main axial hole b11 exposed to the exterior, and afirst sub axial hole b12 connected to the first main axial hole b11. Thefirst main axial hole b11 comprises the described inner space, a firstmain hole diameter d11, and a first base surface b100 serving as asidewall of the inner space. The first sub axial hole b12 has a firstsub hole diameter d12 which is far smaller than the first main holediameter d11 of the first main axial hole b11.

The hole portion b20 of the second substrate B2 comprises a second mainaxial hole b21 exposed to the exterior, a second main hole diameter d21larger than the outer diameter D1 of the shaft portion b10 of the firstsubstrate B1, and a second sub axial hole b22 connected to the secondmain axial hole b21. The second sub axial hole b22 has a second sub holediameter d22 far smaller than the second main hole diameter d21 of thesecond main axial hole b21.

Referring to FIGS. 2B and 4A, the first element 1, an integrally hollowcylindrical structure, serves as a movable compression element when thefirst element 1 is disposed between the first and second substrates B1and B2. The first element 1 comprises a cylindrical portion 10 having anouter surface f00, a conical portion 11 protruding from the cylindricalportion 10 and having an outer surface f01, a shoulder f02 formedbetween the cylindrical portion 10 and the conical portion 11, a firstend 10 e 1 formed on the cylindrical portion 10, a second end 10 e 2formed on the conical portion 11, and a hole portion 13 penetrating thecylindrical portion 10 and the conical portion 11 from the first end 10e 1 to the second end 10 e 2. The shoulder f02 is a surface formedbetween the outer surfaces f00 and f01. To simplify the structuralrelationship, both of the outer surfaces f01 and f02 are defined as afirst acting surface 100, and the outer surface f01 is defined as afirst conical surface. The hole portion 13 comprises a first inner hole131 and a second inner hole 132 smaller than the first inner hole 131. Ashoulder 133 is a surface formed between the first and second holes 131and 132. A positioning portion b113 is formed on the bottom of the firstbase surface b100 of the first main axial hole b11.

Referring to FIGS. 2B and 4A, the second element 2, an integrally hollowcylindrical structure, serves as a back up element with respect to thefirst element 1 when the second element 2 is disposed between the firstand second substrates B1 and B2. The second element 2 comprises a firstcylindrical portion 21 having an outer surface 210 and a secondcylindrical portion 22 protruding from the first cylindrical portion 21.The first cylindrical portion 21 of the second element 2 is fitted intothe second inner hole 132 of the hole portion 13 of the first element 1.The second cylindrical portion 22 of the second element 2 has an outerdiameter larger than that of the first cylindrical portion 21. Ashoulder 200 is formed between the outer surfaces 210 and 220 of thefirst and second cylindrical portions 21 and 22. A first end 20 e 1 anda second end 20 e 2 are respectively formed on the first cylindricalportion 21 and the second cylindrical portion 22. A hole portion 23 ispenetrated the first and second cylindrical portions 21 and 22 from thefirst end 20 e 1 to the second end 20 e 2. A flange 24 is formed on thesecond end 20 e 2 and penetrated by the hole portion 23. To simplify thestructural relationship, the shoulder 200 is defined as a second actingsurface.

Referring to FIGS. 2B, 3 and 4A, the third element 3 is a packing orsealing element disposed between the first acting surface 100 of thefirst element 1 and the second acting surface 200 of the second element2. The third element 3 comprises a C-shaped circular body 30 formed withtrapezoidal cross-section, a first sectioned part 31, and a secondsectioned part 32 corresponding to the first sectioned part 31. The body30 comprises a first side surface S01, a first surface S02, a secondside surface S03, a second surface S04, a first end 300 e 1 and a secondend 300 e 2. The first and second sectioned parts 31 and 32 are formedon the first and second ends 300 e 1 and 300 e 2, respectively.

The first and second surfaces S02 and S04 are top and bottom surfaces ofthe body 30. The first and third side surfaces S01 and S03 are inner andouter circumferential surfaces of the body 30, respectively. The firstside surface S01 is a conical surface disposed next to the first andsecond surfaces S02 and S04. The second side surface S03 is acylindrical surface disposed next to the first and second surfaces S02and S04. The first and second ends 300 e 1 and 300 e 2 are distal endsof the body 30. To simplify the structural relationship, the first sidesurface S01 is defined as a second conical surface. In this embodiment,the body 30 of the third element 3 is made of an elastic material, suchas reinforced Teflon resin, and the first conical surface f01 and thesecond conical surface S01 of the third element 3 have the same conicalangle.

The first sectioned part 31 comprises a first main conjunctive surface310 and two first sub-conjunctive surfaces 311 and 312. The first mainconjunctive surface 310 is located between and perpendicular to the twofirst sub-conjunctive surfaces 311 and 312. That is, the two firstsub-conjunctive surfaces 311 and 312 are respectively located betweenthe first main conjunctive surface 310 and the first surface S02 andbetween the first main conjunctive surface 310 and the second surfaceS04. The first main conjunctive surface 310 is not adjacent, but,parallel to the first and second surfaces S02 and S04. The first sidesurface S01 (conical surface) is adjacent to the first main conjunctivesurface 310 of the first sectioned part 31.

The second sectioned part 32 comprises a second main conjunctive surface320 corresponding to the first main conjunctive surface 310 and twosecond sub-conjunctive surfaces 321 and 322.

The second main conjunctive surface 320 is located between andperpendicular to the two second sub-conjunctive surfaces 321 and 322.That is, the two second sub-conjunctive surfaces 321 and 322 are locatedbetween the second main conjunctive surface 320 and the first surfaceS02 and between the second main conjunctive surface 320 and the secondsurface S04 respectively. The second main conjunctive surface 320 is notadjacent, but, parallel to the first and second surfaces S02 and S04.The first side surface S01 (conical surface) is adjacent to the secondmain conjunctive surface 320 of the first sectioned part 31.

The first and second main conjunctive surfaces 310 and 320 are partiallyparallel to the first acting surface 100 of the first element 1 and thesecond acting surface 200 of the second element 2. That is, the firstmain conjunctive surface 310 is parallel to the surface f02 of the firstacting surface 100 of the first element 1, and the second mainconjunctive surface 320 is parallel to the second acting surface 200 ofthe second element 2.

In this embodiment, the body 30, the first sectioned part 31 and thesecond sectioned part 32 are integrally formed, and the elastic member 4is a spring disposed between the first element 1 and the first substrateB1.

In FIGS. 4A and 4C, referring also to FIGS. 2B and 3, one end of theelastic member 4 is disposed on the positioning portion b113 of thefirst base surface b100 of the first main axial hole b11 of the firstsubstrate B1. In the process of fitting the first cylindrical portion 21of the second element 2 into the second inner hole 132 of the holeportion 13 of the first element 1, the third element 3 is clampedbetween the first acting surface 100 of the first element 1, the surfacef02 and the second acting surface 200 of the second element 2.

The assembled first element 1, the second element 2 and the thirdelement 3 are movable along the first main axial hole b11 of the firstsubstrate B1, and the second side surface S03 of the third element 3 isfrictionally contacted by the first base surface b100 of the first mainaxial hole b11 of the first substrate B1. When the assembled firstelement 1, the second element 2 and the third element 3 disposed betweenthe first and second substrates B1 and B2 is moved to a position,defined as a first initial position r1 located at the first end 10 e 1of the first element 1 in FIG. 4A, where the other end of the elasticmember 4 is confined within the first inner hole 131 of the hole portion13 of the first element 1, the elastic member 4 contacts the shoulder133 of the hole portion 13 of the first element 1.

To specify the relationship of the third element 3 and the first mainaxial hole b11 of the first substrate B1, the inner space of the firstmain axial hole b11 of the first substrate B1 connected to the firstchamber CR1 is divided into a first compartment bill and a secondcompartment b112 by the third element 3. The inner space of the secondmain axial hole b21 of the hole portion b20 is defined as a thirdcompartment b201 connected to the second sub axial hole b22 and thesecond chamber CR2. That is, the first compartment b111 is a partialinner space of the first main axial hole b11 connected to the first subaxial hole b12, and the second compartment b112 is a partial inner spaceof the first main axial hole b11 connected to the third compartmentb201. The first base surface b100 is a common sidewall of the first andsecond compartments b111 and b112. A second base surface b200 is definedas an inner sidewall of the third compartment b201.

The shaft portion b10 of the first substrate B1 is fitted in the secondmain axial hole b21 of the hole portion b20 of the second substrate B2to connect the first main axial hole b11 of the shaft portion b10 of thefirst substrate B1 to the second main and sub axial holes b21 and b22 ofthe second substrate B2.

In FIG. 4B, referring also to FIGS. 2B and 3, when the first chamber CR1is constantly pressurized, the fluid in the first chamber CR1 is in a“Hi” status. The high pressured fluid in the first chamber CR1 pressesthe outer surfaces of the elastic member 4, the first element 1, thethird element 3 and the second element 2 via the first main and subaxial holes b11 and b12 of the shaft portion b10 of the first substrateB1 to move the first element 1, the third element 3 and the secondelement 2 toward the second substrate B2, i.e., the first element 1 ismoved from the first initial position r1 toward a predetermined positionr2.

When the first element 1 is moved from the first initial position r1 tothe predetermined position r2, the flange 24 of the second element 2 ispressed against the inner bottom surface of the second main axial holeb21 of the second substrate B2 to clamp the third element 3 between thefirst base surface b100 of the first element 1 and the second basesurface b200 of the second element 2. The third element 3 is deformedlyclamped under a wedge effect generated from the approach of the firstconical surface f01 of the first acting surface 100 and the secondconical surface S01.

The first conical surface f01 of the first acting surface 100 of thefirst element 1 is outwardly and radially moved, pushing and pressingthe deformed third element 3 against the first base surface b100 of thefirst main axial hole b11 of the first substrate B1. With the structuraldesign of the first and sectioned parts 31 and 32, the deformed thirdelement 3 can be further outwardly expanded, to press closely againstthe second side surface S03 thereof against the first base surface b100of the first main axial hole b11 of the first substrate B1 and toradially and axially seal the inner space of the main body B0 (shown inFIG. 2A). Thus, the fluid in the second chamber CR2 is retained in a“Lo” status.

When the fluid in the first chamber CR1 is pressurized, the axial andradial contacting force from the deformed third element 3, clamped bythe first acting surface 100 of the first element 1 and the secondacting surface 200 of the second element 2, is relatively increased,i.e., the strength of the seal can be increased.

That is, in the first main axial hole b11 of the first substrate B1, thefirst compartment bill and the second compartment b112 are completelyseparated from each other by the deformed third element 3 pressingagainst the first base surface b100 of the first main axial hole b11 ofthe first substrate B1.

While the invention has been described by way of example and in terms ofthe preferred embodiments, it is to be understood that the invention isnot limited to the disclosed embodiments. To the contrary, it isintended to cover various modifications and similar arrangements (aswould be apparent to those skilled in the art). Therefore, the scope ofthe appended claims should be accorded the broadest interpretation so asto encompass all such modifications and similar arrangements.

1. A packing element, comprising a body, comprising a first surface, asecond surface, a first end and a second end, wherein the first surfaceand the second surface are parallel; a first sectioned part disposed onthe first end of the body, comprising a first main conjunctive surfaceand two first sub-conjunctive surfaces, wherein the first mainconjunctive surface is located between the two first sub-conjunctivesurfaces and is not adjacent to the first and second surfaces of thebody, and the two first sub-conjunctive surfaces are respectivelydisposed next to the first and second surfaces of the body; and a secondsectioned part disposed on the second end of the body, comprising asecond main conjunctive surface corresponding to the first mainconjunctive surface and two second sub-conjunctive surfaces, wherein thesecond main conjunctive surface is located between the two secondsub-conjunctive surfaces and is not adjacent to the first and secondsurfaces of the body, and the two second sub-conjunctive surfaces arerespectively disposed next to the first and second surfaces of the body,and the first and second main conjunctive surfaces are parallel to thefirst and second surfaces of the body.
 2. The packing element as claimedin claim 1, wherein the body is formed in circular.
 3. The packingelement as claimed in claim 1, wherein the body, the first sectionedpart and the second sectioned part are integrally formed.
 4. The packingelement as claimed in claim 1, wherein the body further comprises aconical surface disposed next to the first surface, the second surface,the first main conjunctive surface of the first sectioned part, and thesecond main conjunctive surface of the second sectioned part.
 5. Thepacking element as claimed in claim 1, wherein the first mainconjunctive surface is perpendicular to the two first sub-conjunctivesurfaces, and the second main conjunctive surface is perpendicular tothe two second sub-conjunctive surfaces.
 6. The packing element asclaimed in claim 1, wherein the packing element is made of an elasticmaterial.
 7. The packing element as claimed in claim 6, wherein theelastic material comprises a reinforced Teflon resin.
 8. A sealingstructure, comprising a first substrate, comprising an inner space and afirst base surface, wherein the first base surface is a sidewall of theinner space; a first element moved between a first initial position anda first predetermined position, comprising a first acting surfacedisposed on the inner space; a second element disposed in the innerspace of the first substrate, comprising a second acting surface; apacking element disposed between the first acting surface of the firstelement and the second acting surface of the second element, comprising:a body, comprising a first surface, a second surface, a first end and asecond end, wherein the first surface and the second surface areparallel; a first sectioned part disposed on the first end of the body,comprising a first main conjunctive surface and two firstsub-conjunctive surfaces, wherein the first main conjunctive surface islocated between the two first sub-conjunctive surfaces and is notadjacent to the first and second surfaces of the body, and the two firstsub-conjunctive surfaces are respectively disposed next to the first andsecond surfaces of the body; and a second sectioned part disposed on thesecond end of the body, comprising a second main conjunctive surfacecorresponding to the first main conjunctive surface and two secondsub-conjunctive surfaces, wherein the second main conjunctive surface islocated between the two second sub-conjunctive surfaces and is notadjacent to the first and second surfaces of the body, and the twosecond sub-conjunctive surfaces are respectively disposed next to thefirst and second surfaces of the body, and the first and second mainconjunctive surfaces are parallel to the first and second surfaces ofthe body; wherein the body is deformedly clamped between the firstacting surface of the first element and the second acting surface of thesecond element and the first main conjunctive surface of the firstsectioned part and the second main conjunctive surface of the secondsectioned part are contacted, to press the deformed third element on thefirst base surface of the first substrate.
 9. The sealing structure asclaimed in claim 8, wherein the first acting surface of the firstelement comprises a first conical surface and the body of the packingelement comprises a second conical surface contacting the first conicalsurface of the first acting surface of the first element, wherein thefirst conical surface of the first acting surface of the first elementand the second conical surface of the body of the packing element havethe same conical angle.
 10. The sealing structure as claimed in claim 8,wherein the packing element is formed in trapezoidal cross-section. 11.The sealing structure as claimed in claim 8, wherein the body of thepacking element is formed in circular.
 12. The sealing structure asclaimed in claim 8, wherein the packing element is made of an elasticmaterial.
 13. The sealing structure as claimed in claim 12, wherein theelastic material comprises a reinforced Teflon resin.
 14. The sealingstructure as claimed in claim 8, further comprising a second substratehaving a second base surface, wherein the second element contacts thesecond base surface of the second substrate when the first element ismoved from the first initial position to the first predeterminedposition.
 15. The sealing structure as claimed in claim 8, wherein thefirst main conjunctive surface of the packing element is perpendicularto the two first sub-conjunctive surfaces of the packing element, andthe second main conjunctive surface is perpendicular to the two secondsub-conjunctive surfaces.
 16. The sealing structure as claimed in claim8, wherein the first surface of the packing element contacts the firstacting surface of the first element, and the second surface of thepacking element contacts the second acting surface of the secondelement.
 17. The sealing structure as claimed in claim 8, furthercomprising an elastic member disposed between the first substrate andthe first element.
 18. The sealing structure as claimed in claim 17,wherein the elastic member comprises a spring.
 19. The sealing structureas claimed in claim 8, wherein the sealing structure is a compressor.20. The sealing structure as claimed in claim 19, wherein the compressoris a scroll compressor.